A Finite-Time Thermal Cycle Variational Optimization with a Stefan-Boltzmann Law for Three Different Criteria

被引：6

作者：

Chimal-Eguia, Juan C. ^{[2
]}

Sanchez-Salas, Norma ^{[1
]}

Barranco-Jimenez, Marco A. ^{[3
]}

机构：

[1] IPN, Escuela Super Fis & Matemat, Dept Fis, Mexico City 07738, DF, Mexico

[2] IPN, Ctr Invest Comp, Mexico City 07738, DF, Mexico

[3] IPN, Dept Formac Basica, Escuela Super Comp, Mexico City 07738, DF, Mexico

来源：

ENTROPY | 2012年 / 14卷 / 12期

关键词：

variational approach; Stefan-Boltzmann law; Curzon-Alhborn engine; maximum power output; ecological function; maximum power density; HEAT-TRANSFER LAW; ECOLOGICAL OPTIMIZATION; THERMODYNAMIC OPTIMIZATION; OPTIMAL CONFIGURATION; PERFORMANCE; ENGINE; POWER; EFFICIENCY;

D O I：

10.3390/e14122611

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This work shows the power of the variational approach for studying the efficiency of thermal engines in the context of the Finite Time Thermodynamics (FTT). Using an endoreversible Curzon-Ahlborn (CA) heat engine as a model for actual thermal engines, three different criteria for thermal efficiency were analyzed: maximum power output, ecological function, and maximum power density. By means of this procedure, the performance of the CA heat engine with a nonlinear heat transfer law (the Stefan-Boltzmann law) was studied to describe the heat exchanges between the working substance and its thermal reservoirs. The specific case of the Muser engine for all the criteria was analyzed. The results confirmed some previous findings using other procedures and additionally new results for the Muser engine performance were obtained.

引用

页码：2611 / 2625

页数：15

共 43 条

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